[Vm-dev] Compiling squeak.cog.spur on Pi

[David T. Lewis]

On Fri, Jun 24, 2016 at 12:04:06AM -0400, Phil (list) wrote:
>  
> On Thu, 2016-06-23 at 23:52 -0400, Phil (list) wrote:
> > The Linux world decided a while back that ARMv7 was the minimum for
> > hard float but then the rpi became a thing with its ARMv6 which,
> > unlike
> > many/most other versions of the v6, included hard float. ??So look at
> > it
> > more as the Linux world viewing ARMv6 as being unsupported like the
> > Intel 486 or older (I think they even bumped that up to Pentium
> > recently)... i.e. it's unsupported by default on modern distros, but
> > of
> > course you can still build a custom distro that supports it as they
> > did
> > for the Pi. ??So this puts the original Pi in the odd position of
> > being
> > unsupported by any of the armhf distros where the Pi 2 and later can
> > run most of them. ??But running a non-Raspberry armhf distro likely
> > also
> > means that you have this issue of not being able to build ARMv6
> > binaries.
> 
> Just thought of a possibly better way to explain this for anyone who
> remembers the bad old days: remember how great it was when the Intel
> 486 came out and you could assume anyone running on a 486 had hardware
> floating point? ??Then the 486SX with disabled FP came out and screwed
> that assumption up. ??The Pi 1 was essentially the reverse of that: a
> 386 with a built-in 387 which became wildly popular... not what the
> Linux world was expecting.

Great explanation, thanks.

Dave